Improvement in harvesters



GEORGE S. ELLARD, OF WESTERLY, RHODE ISLAND.

IMPROVEMENT IN HARVESTERS.

- Specification forming part of Letters Patent No. 92,294, dated July 6,1869.

To all whom it may concern:

Be it known that I, GEORGE S. ELLARD, of Westerly, in the county ofWashington and State of Rhode Island, have invented a new and ImprovedMotion for Reapers and Mowers, and other purposes; and I do herebydeclare that the following is a full, clear, and eXact descriptionthereof, which will enable others skilled in the art to make and use thesame, reference being had to the accompanying drawings, forming part ofthis specification.

This invention relates to a new and improved -method of producing areciprocating motion, more especially designed for reapers and mowers,in operating the cutter-bars of those machines, but applicable to otherpurposes; and consists in arranging, in combination with adriving-wheel, a wheel with a zigzag flange, by which the ends of alever are given a reciprocating or vibrating motion, and in connectingtherewith a ratchet and pawl, and arranging the whole in such a mannerthat the wheel will cease to revolve during any backward movement, andalso when the pawl is thrown from the ratchet, as will be hereinaftermore fully described.

In the accompanying plate of drawings, Figure 1 represents a verticalsection of a pair of wheels with my improvement attached, the

section being through the line :0 w of Fig. 2. Fig. 2 is a face view ofmy improvement connected with a driving-wheel, showing the vibratinglever from which motion is imparted to the cutter-bar, of a reaper ormower, or for other purposes. Fig. 3 is a view of the reverse side,showing the ratchet and pawl, and the inside of the driving-wheel.

Similar letters of reference indicate corresponding parts. I

Ais the wheel from whence I obtain my vibrating motion. It revolves onthe hub of the driving-wheel B when it is not carried with thedriving-wheel by the pawl in the ratchet O. This ratchet is .attached tothe wheel A. The pawl D is attached to the driving-wheel B, and isoperated by a rod, D, as

seen, on the inside of the driving-Wheel B. The zigzag which producesthe reciprocating motion is on a flange projecting from the face of thewheel A, as seen in Fig. 1. E is the vibrating lever, the fulcrum ofwhich is in a sleeve, F, on the end of the axle G. This sleeve isfastened to the axle by a set-screw, as seen in the drawing. The lever Eis provided with two friction-rollers, which engage with the face of thezigzag flange on the wheel A alternately, so that the revolution of theWheel causes a horizontal vibrating motion in the ends of the leversuitable for operating the cutter-bar of a reaper or mowingmachine.

When it is desired to stop the motion of the lever E, it is onlynecessary to throw the pawl out of the ratchet, when the wheel A willcease to revolve.

When a back movement occurs the pawl will slip over the teeth of theratchet without revolving the wheel.

' It will be seen that by this arrangement the lever E is placeddirectly across the diameter of the actuating-wheel A, and receivesmotion from each of its sides, thus equalizing the strain, and producingthe desired motion by a single zigzag.

This arrangement occasions much less friction, and requires much lesspower than it does to produce the motion by gear-wheels in GEORGE S.ELLARD.

Witnesses:

WM. H. CHAPMAN, WILLIAM P. OoY.

